This is utterly perfect. I have NOTHING negative to say. The style, colors, and light shading is clean and simple, the animation is synced and adorable (even Ice King is adorable! XD), and they are completely unique compared to the other styles of Adventure Time pixel icons I've seen. I love how they are very chibi and anime-esque, especially Finn's little curl and the blush on Jake and Flame Princess (and the cuteness you managed to capture in Marceline, since she usually looks gloomy). I actually clicked on these to compliment your work and then I saw the critque option and flipped out because I could rate a perfect 5 stars.